This is a front parking light bezel for a 1947-53 Chevy Pickup.  The piece appears to have been rusty, pitted, re-plated, then left around the barn to get tired. The plater should have left in the nickel tank a bit longer to fill in some of the pitting, for a smoother mirror finish.  Although this piece has fresh chrome, it is not as smooth as you might want for a show car.